Head mounted display and using method thereof

Abstract

A head mounted display comprises a light sensor, a first light source, a second light source, a transflective mirror, a lens, a display and a filter. The first light source is used for generating a first light beam. The second light source is used for generating a second light beam. The transflective mirror is provided on the light paths of the first light beam and the second light beam. The first light source is provided at the periphery of the lens or the light sensor. The first light beam is reflected by a first object, and enters the light sensor via the lens and the transflective mirror in sequence. The second light source is provided at the periphery of the filter. After leaving the second light source, the second light beam is reflected by a second object outside the head mounted display first, and then enters the light sensor via the filter and the transflective mirror in sequence. A using method of the head mounted display is also provided.

What is claimed is: 
     
       1. A head mounted display, comprising:
 a light sensor; 
 an optical module, provided in the head mounted display; 
 a first light source, used for generating a first light beam to a first object, the first light source being provided on the head mounted display, and a first reflected light beam of the first light beam entering the light sensor via the optical module; and 
 a second light source, used for generating a second light beam to a second object, the second light beam forms an included angle relative to the first light beam, and a second reflected light beam of the second light beam being refracted to the light sensor via the optical module. 
 
     
     
       2. The head mounted display according to  claim 1 , wherein the light sensor is switched by time sequence or frequency to sense different first reflected light beams or second reflected light beams. 
     
     
       3. The head mounted display according to  claim 2 , wherein the first light source generates the first light beam by a first frequency, and the second light source generates the second light beam by a second frequency, the first frequency being different from the second frequency. 
     
     
       4. The head mounted display according to  claim 3 , wherein the light sensor senses the first reflected light beam or the second reflected light beam according to the first frequency of the first light source or the second frequency of the second light source. 
     
     
       5. The head mounted display according to  claim 1 , wherein the optical module switches the refraction angle of the different first reflected light beams or second reflected light beams in the optical module. 
     
     
       6. The head mounted display according to  claim 1 , wherein the optical module controls a time point for the second reflected light beam to enter the optical module. 
     
     
       7. The head mounted display according to  claim 1 , wherein the included angle is larger than 45 degrees. 
     
     
       8. The head mounted display according to  claim 1 , wherein the second light source is provided on the housing surface of the head mounted display downwards relative to the first light source. 
     
     
       9. The head mounted display according to  claim 1 , wherein a distance for the second light beam to pass through a space is longer than 2 times of a distance for the first light beam to pass through the space. 
     
     
       10. The head mounted display according to  claim 1 , further comprising a display, the display facing the inside of the head mounted display, and the direction of an image generated by the display being the same as the advancing direction of the first light beam. 
     
     
       11. A head mounted display, comprising:
 a light sensor; 
 a first light source, used for generating a first light beam; 
 a second light source, used for generating a second light beam; 
 a transflective mirror, provided on the light paths of the first light beam and the second light beam; 
 a lens, the first light source being provided at the periphery of the lens or the light sensor, and the first light beam being reflected by a first object, and then entering the light sensor by passing through the lens and being reflected by the transflective mirror in sequence; 
 a display, an image displayed by the display passing through the transflective mirror and the lens in sequence; and 
 a filter, the second light source being provided at the periphery of the filter, and the second light beam being reflected by a second object outside the head mounted display first after leaving the second light source, and then entering the light sensor via the filter and the transflective mirror in sequence. 
 
     
     
       12. The head mounted display according to  claim 11 , wherein the first light source and the second light source are infrared light sources. 
     
     
       13. The head mounted display according to  claim 11 , wherein the light sensor is an infrared light sensor. 
     
     
       14. The head mounted display according to  claim 11 , wherein the transflective mirror is an infrared light transflective mirror. 
     
     
       15. The head mounted display according to  claim 11 , wherein the filter is an infrared light filter. 
     
     
       16. The head mounted display according to  claim 11 , further comprising a third light source, used for generating a third light beam, the first light source being provided at the periphery of the lens, the first light beam being reflected by the first object first after leaving the first light source and then entering the light sensor by passing through the lens and being reflected by the transflective mirror in sequence, the third light source being provided at the periphery of the light sensor, and the third light beam being reflected by the first object by being reflected by the transflective mirror and passing through the lens in sequence after leaving the third light source, and then entering the light sensor by passing through the lens and being reflected by the transflective mirror in sequence. 
     
     
       17. The head mounted display according to  claim 11 , further comprising a fourth light source, used for generating a fourth light beam, the fourth light beam being provided at the periphery of the filter, the second light beam being reflected by the second object first after leaving the second light source, and then entering the light sensor via the filter and the transflective mirror in sequence, and the fourth light beam being reflected by a third object outside the head mounted display first after leaving the fourth light source, and entering the light sensor via the filter and the transflective mirror in sequence. 
     
     
       18. A using method of a head mounted display, comprising:
 turning on a first light source and a second light source of the head mounted display, so that the first light source generates a first light beam to irradiate to a first object, and the second light source generates a second light beam to irradiate to a second object; 
 acquiring an image of the first object and an image of the second object by using a light sensor of the head mounted display; and 
 calculating the change of the image of the first object and the change of the image of the second object, so as to correspondingly adjust the image displayed by a display of the head mounted display. 
 
     
     
       19. The using method of the head mounted display according to  claim 18 , the first light source and the second light source being turned on at the same time, so that the light sensor acquires the image of the first object and the image of the second object at the same time. 
     
     
       20. The using method of the head mounted display according to  claim 18 , the first light source and the second light source being turned on in turn, so that the light sensor acquires the image of the first object and the image of the second object in turn.